The article deals with a project of analysis of natural development processes of the noun declination in dialects of the Slavic languages in a special volume of the international project - 'Slavic Linguistic Atlas'. The author offers a basic experience from cartographic processing of morpho-phonological and/or morphological items in particular Slavic macro-areas and points out the necessity of the synthetic analysis of the natural development of the noun declination in dialects of the Slavic languages as a starting point of the explanation focused on the nature in morphology.
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